USABlueBook® Sewer Tracing Dye, Yellow-Green Liquid, Case of 18 Pints

USABlueBook sewer tracing dyes are specially formulated for sewer flow studies, infiltration or pollution investigation. When used at the proper dilutions, they are biodegradable, non-toxic and harmless to wildlife. Sewer dyes will not affect the operation of sewer treatment plants. Yellow-green color is highly visible, and in low light situations the fluorescent properties are visible under ultraviolet light. To impart a vibrant, visible color, use 1 to 2 gallons of liquid dye for 12,000 gallons of water.

Note: Not intended for potable water testing.